[Ultrastructure of the neurons and synapses of the posterior hypothalamic field in immune reactions].

The antigenic stimulation induces alteration of the ultrastructure of neurons, synapses and glial cells in area hypothalamic posterior of the brain of experimental animals. Swelling of mitochondria, partial or total destruction of cristae points out to the involvement of the energy apparatus of neurons and synapses. An intensive formation of antibodies is accompanied by an increase in the structural functional activity of neurons. Ultrastructural alterations of some organelles of neurones, synapses and glial cells are connected with adaptive reactions of intracellular structures and have a non-specific nature.